Bourns next-generation gate driver power planar transformers
Bourns announces SM91270AL and SM91271AL series
Bourns magnetics product line is pleased to introduce the model SM91270AL and SM91271AL LLC planar transformers for gate driver applications.
These new transformers feature a planar structure (EE8.5 platform) to minimize size while providing high isolation, high efficiency and good EMI performance.
The model SM91270AL and SM91271AL planar transformers were developed for use with the TI Model UCC25800 and MPS Model MPQ18913 for LLC applications, and the Maxim model MAX25256 for full bridge applications. Bourns’ fully automated manufacturing process helps ensures high quality and cost-effectiveness for these low-profile parts (below 3.5mm height above the PCB) with a no base design structure. The models offer a working voltage of up to 850VDC for reinforced insulation, a Hi-Pot isolation voltage of up to 6000 VDC and an extended operating temperature range from -40°C to +125°C. They provide a maximum output power of up to 5.4W.
Features
- Reinforced insulation for a working voltage up to 850VDC
- Hi-Pot: 6000VDC, 1mA, 60s
- Design construction: IEC 60664-1 and IEC 62368-1, UL 62368-1 and IEC 62477-1
- Creepage distance > 9mm
- Clearance distance > 9mm
- Overvoltage category II, pollution degree 2, up to 5km above sea level, material group I (CTI ≥ 600)
- AEC-Q200 compliant
- RoHS compliant*
- Automotive grade
Applications
- Automotive traction inverter and motor control
- Automotive on-board charger (OBC), DC-DC converter
- GaN, IGBT and SiC gate transformer driver bias supply
- UPS and solar inverters
- EV charging station, DC fast charging station
- Industrial motors, elevators and escalators
* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
